Nearly 40 scientists, space physics data system managers, and National Aeronautics and Space Administration (NASA) Headquarters personnel who are members of the Data System Users Working Group (DSUWG) met at the National Space Science Data Center (NSSDC) on July 18 and 19, 1985. The main topic of the meeting was discussion on the use of the Space Physics Analysis Network (SPAN) for the rendezvous of the International Cometary Explorer (ICE) spacecraft with Comet Giacobini-Zinner. Ron Zwickl, from the Los Alamos National Laboratory (LANL, Los Alamos, N.M.), explained the procedures to be used for the transfer of near real-time ICE data from Goddard Space Flight Center (GSFC, Greenbelt, Md.), to remote investigator facilities at LANL, the Jet Propulsion Laboratory QPL, Pasadena, Calif.), University of Iowa (Iowa City), TRW (Redondo Beach, Calif.), and back to NSSDC. These procedures were successfully tested in an encounter rehearsal 2 days before the DSUWG meeting. James Green of NSSDC explained how the newly developed SPAN-to-Europe gateway would be used to support a European science analysis team at European Space Technology Center (ESTEC, Noordwijk, the Netherlands). Successful testing of ICE data transfer to Europe occurred just the day before the DSUWG meeting.